AD 91-23-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-10-10 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -15, -30, -30F, -40, -40F, and KC-10A (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-10-10F | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -15, -30, -30F, -40, -40F, and KC-10A (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-10-15 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -15, -30, -30F, -40, -40F, and KC-10A (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-10-30 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -15, -30, -30F, -40, -40F, and KC-10A (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-10-30F (KC-10A, KDC-10) | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -15, -30, -30F, -40, -40F, and KC-10A (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-10-40 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -15, -30, -30F, -40, -40F, and KC-10A (Military) Series Airplanes |
| aircraft | The Boeing Company | DC-10-40F | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -15, -30, -30F, -40, -40F, and KC-10A (Military) Series Airplanes |
Unsafe Condition
The hydraulic system number 3 shutoff valve closure may not be observed due to an unobserved indication.
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Required Actions
Install a wire in accordance with McDonnell Douglas DC-10 Service Bulletin 29-132, Revision 1, dated August 26, 1991. The modification must be done per the service bulletin and an alternative method of compliance may be used if approved by the FAA.
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Compliance Time
Within 6 months after the effective date of this AD
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Affected Aircraft
Model DC-10-10, -10F, -15, -30, -30F, -40, -40F, and KC-10A (Military) series airplanes, certificated in any category.
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Federal Register Abstract
Master Caution Warning System
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_91-23-14.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 91-23-14 Document Type: AD Final Rules Docket Number: 91-NM-89-AD Subject Heading: Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -15, -30, -30F, -40, -40F, and KC-10A (M...Show more Subject: Master Caution Warning System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/09/1992 Make: The Boeing Company Model: DC-10-10 | DC-10-10F | DC-10-15 | DC-10-30 | DC-10-30F (KC-10A, KDC-10) | DC-10-40 | DC-10-40F Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 91-23-14 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 91-NM-89-AD AMENDMENT: 39-8083 AD NUMBER: 91-23-14 SUBJECT HEADING: Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -15, -30, -30F, -40, -40F, and KC-10A (Military) Series Airplanes ACTION: SUMMARY: DATES: Effective January 9, 1992. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 91-23-14 MCDONNELL DOUGLAS: Amendment 39-8083. Docket No. 91-NM-89-AD. Applicability: Model DC-10-10, -10F, -15, -30, -30F, -40, -40F, and KC-10A (Military) series airplanes, certificated in any category. Compliance: Required as indicated, unless previously accomplished. To prevent an unobserved indication that the hydraulic system number 3 shutoff valve has closed, accomplish the following: (a) Within 6 months after the effective date of this AD, modify the Master Caution Warning System by installing a wire in accordance with paragraph 2, Accomplishment Instructions, of McDonnell Douglas DC-10 Service Bulletin 29-132, Revision 1, dated August 26, 1991. (b) An alternative method of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Los Angeles Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. NOTE: The request should be forwarded through an FAA Principal Avionics Inspector, who may concur or comment and then send it to the Manager, Los Angeles ACO. (c) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD. (d) The modification requirements shall be done in accordance with McDonnell Douglas DC-10 Service Bulletin 29-132, Revision 1, dated August 26, 1991. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from McDonnell Douglas Corporation, P.O. Box 1771, Long Beach, California, 90801, ATTN: Group Leader, MD-11/DC-10 and DC-8/-8, Service Change Operations, Mail Code 73-30. This information may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 1601 Lind Avenue S.W., Renton, Washington, or at the Los Angeles Aircraft Certification Office, 3229 East Spring Street, Long Beach, California; or at the Office of the Federal Register, 1100 L Street N.W., Room 8401, Washington, D.C. This amendment (39-8083, AD 91-23-14) becomes effective on January 9, 1992. FOOTER:
Document Text
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AD Final Rules - DRS_91-23-14.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 91-23-14 Document Type: AD Final Rules Docket Number: 91-NM-89-AD Subject Heading: Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -15, -30, -30F, -40, -40F, and KC-10A (M...Show more Subject: Master Caution Warning System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/09/1992 Make: The Boeing Company Model: DC-10-10 | DC-10-10F | DC-10-15 | DC-10-30 | DC-10-30F (KC-10A, KDC-10) | DC-10-40 | DC-10-40F Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 91-23-14 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 91-NM-89-AD AMENDMENT: 39-8083 AD NUMBER: 91-23-14 SUBJECT HEADING: Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -15, -30, -30F, -40, -40F, and KC-10A (Military) Series Airplanes ACTION: SUMMARY: DATES: Effective January 9, 1992. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 91-23-14 MCDONNELL DOUGLAS: Amendment 39-8083. Docket No. 91-NM-89-AD. Applicability: Model DC-10-10, -10F, -15, -30, -30F, -40, -40F, and KC-10A (Military) series airplanes, certificated in any category. Compliance: Required as indicated, unless previously accomplished. To prevent an unobserved indication that the hydraulic system number 3 shutoff valve has closed, accomplish the following: (a) Within 6 months after the effective date of this AD, modify the Master Caution Warning System by installing a wire in accordance with paragraph 2, Accomplishment Instructions, of McDonnell Douglas DC-10 Service Bulletin 29-132, Revision 1, dated August 26, 1991. (b) An alternative method of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Los Angeles Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. NOTE: The request should be forwarded through an FAA Principal Avionics Inspector, who may concur or comment and then send it to the Manager, Los Angeles ACO. (c) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD. (d) The modification requirements shall be done in accordance with McDonnell Douglas DC-10 Service Bulletin 29-132, Revision 1, dated August 26, 1991. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from McDonnell Douglas Corporation, P.O. Box 1771, Long Beach, California, 90801, ATTN: Group Leader, MD-11/DC-10 and DC-8/-8, Service Change Operations, Mail Code 73-30. This information may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 1601 Lind Avenue S.W., Renton, Washington, or at the Los Angeles Aircraft Certification Office, 3229 East Spring Street, Long Beach, California; or at the Office of the Federal Register, 1100 L Street N.W., Room 8401, Washington, D.C. This amendment (39-8083, AD 91-23-14) becomes effective on January 9, 1992. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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